<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="../resources/orientation-event-helpers.js"></script>
<script>
'use strict';

function check_properties_for_coarsening(obj, properties) {
  assert_not_equals(obj, null, 'Expected event object');
  for (const prop of properties) {
    assertValueIsCoarsened(obj[prop]);
  }
}

promise_test(async (t) => {
  const helper = new SensorTestHelper(t, 'devicemotion');
  await helper.grantSensorsPermissions();
  await helper.initializeSensors();

  const value = 1.23456789;
  const motionData = generateMotionData(value, value, value,
                                        value, value, value,
                                        value, value, value);
  await helper.setData(motionData);

  const event = await new Promise(resolve => {
    window.addEventListener('devicemotion', t.step_func(ev => {
      resolve(ev);
    }, { once: true }));
  });

  check_properties_for_coarsening(event.acceleration, ['x', 'y', 'z']);
  check_properties_for_coarsening(event.accelerationIncludingGravity, ['x', 'y', 'z']);
  check_properties_for_coarsening(event.rotationRate, ['alpha', 'beta', 'gamma']);
}, 'Tests that devicemotion values are correctly rounded.');
</script>
